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Vegetace a půdní semenná banka na vybraných úhorech v NP Podyjí
Smetanová, Sabina
In many European regions, there has been a decline in biodiversity of agricultural landscapes as a result of agricultural intensification and abandonment of the traditio-nal ways of management common to the mid-20th century (grazing, hand held, small and irregular mowing). . One of the methods to mitigate the decline in biodiversity is the use of fallows as a potential management in the nature protection. During June and September 2018, the one-year vegetation grown on the longtime experimental fallow lands (deployed on 8 locations around the area of the National park Podyjí) was documented using phytosociological methods. The phytosociological specimens has been noted down in five repetitions for every variant of the experiment in every location. The „area A“ has been ploughed every year since december 2008 until present and „area B“ was kept as fallow land during period 2008-2013, then peri-odical plough started again. In March 2019, samples of the soil has been taken, which are going to be used for determination of germinability of seed bank in the jar experi-ment. The small-scale plowing of the homogeneous grass-herb vegetation on the area of abandoned formlands allows the rehabilitation of plant species with short lifepan which could not germinate in the overgrown vegetation. A possible exploitability and benefits of using follows for biodiversity increase in the area, as the risks connected with that method, will be possible to fully evuluated after long-term study of the plant succesion.
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